A Dichotomy for the Definable Universe
Hjorth, Greg
J. Symbolic Logic, Tome 60 (1995) no. 1, p. 1199-1207 / Harvested from Project Euclid
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In the presence of large cardinals, or sufficient determinacy, every equivalence relation in $\mathbb{L(R)}$ either admits a wellordered separating family or continuously reduces $E_0$.
Publié le : 1995-12-14
Classification:  Descriptive set theory,  equivalence relations,  effective cardinality,  04A15 
@article{1183744872,
     author = {Hjorth, Greg},
     title = {A Dichotomy for the Definable Universe},
     journal = {J. Symbolic Logic},
     volume = {60},
     number = {1},
     year = {1995},
     pages = { 1199-1207},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1183744872}
}

Hjorth, Greg. A Dichotomy for the Definable Universe. J. Symbolic Logic, Tome 60 (1995) no. 1, pp.  1199-1207. http://gdmltest.u-ga.fr/item/1183744872/